Ex-RDG unit switching a paper warehouse. From the looks of those rerailing frogs they were ready for almost anything.
It's Lackawaxen & Stourbridge but that was not an option (correction submitted). Believe to be ex-RDG. I wonder when was the last time that steam generator was fired up.
Much to my delight, I found this Susquehanna RS-1 on the Lackawaxen & Stourbridge.